Q: What is the sum of all factors of the number 1,806,280 including 1,806,280?

Why is 4,645,440 the sum of all factors of 1,806,280, including 1,806,280?

The factors of the number 1,806,280 are: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 6451, 12902, 25804, 32255, 45157, 51608, 64510, 90314, 129020, 180628, 225785, 258040, 361256, 451570, 903140, 1806280.

If you add them up, you will get the total of 4,645,440.

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